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Ohio · U.S. Senate (special election)

Ohio Senate race 2026 odds: Brown vs Husted

Prediction markets make Sherrod Brown (D) the favourite in the Ohio Senate race, at 70% on Polymarket and 68% on Kalshi. A win would flip the seat from Republicans to Democrats.

Odds updated just now · election day November 3

DSherrod Brown

69%

Polymarket 70% · Kalshi 68%

RJon Husted

31%

Polymarket 31% · Kalshi 32%

Democrats 69%Republicans 31%

Chance for each party, by platform

PolymarketD 70%R 31%
KalshiD 68%R 32%

Race facts

Office
U.S. Senate (special)
Held by
Republicans
Chance it flips
69%
Platforms disagree by
1 pts
Election day
Nov 3, 2026

All candidates

Each platform’s price, scaled so its candidates add up to 100%, and the average.

CandidatePolymarketKalshi
  • DSherrod Brown70%68%
  • RJon Husted31%32%

More 2026 races

All 2026 races: Senate · governors · overview. How the odds work: how prediction markets work. Not financial advice.

Frequently asked questions

Who is favoured to win the Ohio Senate race in 2026?

Sherrod Brown (Democratic), at 69% on average across Polymarket (70%) and Kalshi (68%).

Which party holds the seat now?

Republicans. Markets give about a 69% chance it changes party in November. This is a special election for the remainder of the term.

When is the election?

Tuesday, November 3, 2026, 11 days from now. The markets resolve once the race is called or certified, according to each platform’s rules.

Why do Polymarket and Kalshi show different odds?

They are separate exchanges with different traders and fees, so the same candidate can trade a few points apart. When the gap is large, buying on the cheaper side can be an opportunity, as explained in our arbitrage guide.